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11560 Uppsatser om Data- och systemvetenskap - Sida 20 av 771
Identifiering av synkronmaskinsmodell genom SSFR-test
At the Division of Electricity at Uppsala University there is an experimental rig forhydroelectric generators. The experimental rig?s vital part is a 12-pole synchronousmachine, whose electrical characterizing parameters (resistances, inductances andtime constants) are unknown. The aim of this thesis is to characterize the machine inits current state by perform a Standstill Frequency Response (SSFR) test. From theanalysis of the measurement data, which is a part of the test, a set of basic parametershave been received.
Explorativ temporal visual space management för beslutsunderlag
Denna rapport beskriver VisMT 2. VisMT 2 är en programvara som utvecklats som ett examensarbete av Daniel Peterson vid Linköpings Universitet i samarbete med organisationen NVIS (Norrköpings Visualiserings och Interaktionsstudio).Målsättningen för VisMT 2 var att skapa en enkel och kraftfull mjukvara som på ett innovativt sätt synliggör resultat och prestanda för butiker i detaljhandelskedjor. Vidare sattes målet att programmet skulle grunda sig i ett explorativt gränssnitt där användaren kan undersöka butiksrelaterade data i både spatial och temporalplanet.Programmet gavs ett gränssnitt med sammanlänkade vyer. Interaktion i en vy ger återkopplingar för relaterade data i en annan vy i realtid.Programmet utvecklades i C# .NET och använder Managed DirectX för att generera 3D-grafik. Det slutgiltiga resultatet uppfyller väl den målsättning som skapades vid projektets inledning.
Activity patterns of snow leopards (Panthera uncia) at their kill sites
The snow leopard (Panthera uncia) is an elusive felid, native to the mountains in central Asia. Basic knowledge about the snow leopards? ecology has long been lacking but is advancing with the help of the GPS-technology. GPS cluster analysis can provide insight in the diet and prey selection of elusive predators, such as the snow leopard. Acceleration data from GPS collars can be used to study animal behavior but the two have never been combined to gain more detailed information of the feeding behavior of large carnivores.
A First Effort to Visualize Knowledge of a Region? A visualization of Öresund & Shenzhen in the perspective of Knowledge Innovation Zone
We have through our theoretical framework been able to create a simplified measuring tool for a KIZ; the S-TKL. We have found that the S-TKL is possible to implement on the Öresund Region but with some flaws. Even though the Öresund Region has implemented the mindset of a KIZ, accurate statistics are in some areas hard to find. We can also through our empirical findings say that it is difficult to use the S-TKL on Shenzhen. The data we have found gives a good indication of both of the regions.
Skapa värde med integrationer - En studie av hur affärsvärde och konkurrensfördelar skapas från integrationer i industribranschen.
Companies will increasingly begin to link their applications, and the technology that makesthis possible is called integration. The more applications that are connected, the more of the company's data flows through these integrations. It is also clear that data analyses to create business value and to get competitive advantages against its competitors are important. In this paper, we examine how companies create business value and competitive advantages throughthe integration platforms and metadata from the integrations. We have interviewedpeople from three companies in the industrial sector, each with an integration platform.We have also interviewed Enfo Zystems, a company that provides development andmanagement of integration platforms to these customers.
Robust internetinfrastruktur med DNSSEC och IPv6 : En studie av DNSSEC- och IPv6-implementationen hos utvalda organisationer i Sverige
Domännamnssystemet DNS är en vital och ofrånkomlig del av internet. Det är dock sårbart för attacker. DNSSEC är ett sätt att minska sårbarheten hos DNS. I detta examensarbete har data om ett antal domäner samlats in med hjälp av Zonemaster och domain information groper för att sedan bearbetas med hjälp av bash-skript och java-kod. Detta data har sedan analyserats.
Babels torn återuppstår : Den interna kommunikationens påverkan i agila projektteam.
Internal communication is an important factor in organisations today. For many system development teams it?s critical that the communication works well. Without communication, success would be impossible. This study aims to highlight the effect communication has on the members of agile project teams.
Frivillig revision - Vad avgör rekommendationen? : En studie ur revisorns perspektiv
Aim The aim of the thesis is to explain the factors that affect the auditor's recommendation concerning audit services to customers who are not subject to mandatory auditing.Background and problem In 2010 mandatory auditing for small companies was abolished. It is common for the auditor to provide recommendations re-garding whether or not a customer should chose to retain the audit. The question is which factors can explain the auditor's recommendation.Method and empirics This thesis uses a deductive approach with inductive elements and a combination of qualitative and quantitative data is used. The qualitative data consists of a pilot study and the quantitative data consists of a questionnaire survey. The analysis of the empirical data was performed using regression analysis.Theory This thesis applies an eclectic approach where the starting point is legitimacy, institutional theory, professional theory and decision making theory to develop a model.Results and conclusions The notion of the recommendation as well as the extent of the recommendations can be explained by factors related to the auditor's agency affiliation and the auditor's personal qualities..
Magkänsla mot matematik : Kan mekanisk rekrytering förhindra diskriminering?
The aim of this study was to investigate if a mechanical recruitment process could be a useful tool for employers to avoid discrimination. National and international law protect jobseekers from discrimination during the recruiting process. Despite this individuals frequently report that they are treated unfairly when they apply for a job. In line with this research shows that some individuals do not have the same opportunities in the labour market as the rest of the population. This study focus on discrimination based on ethnicity, age, gender or disability.Today most of the hiring decisions are based on employers professional judgement.
Kulturanvändande bland Unga : En studie om kulturvanor, ungdomars livsvillkor och bibliotekets roll
The aim of this bachelor thesis has been to examine and develop our own understanding about how young people in Sweden (16-29 years of age), take part in cultural activities. As librarians it is important to know what kind of activities and interests this particular group has. With Pierre Bourdieu?s theoretical framework towards habitus and capital we are interested to see if there is a connection between one?s cultural use and background, if different access to capital with or within groups has an affect or not. With both statistics and interviews with people within our target, we believe this data has been sufficient enough to conduct a good and valid study.
Russinen ur kakan: - uppföljning av kampanjer i byggvaruhandeln
The Swedish do-it-yourself (DIY) market has expanded in recent years and is today a SEK90 billion market. Competition is fierce, however, and the DIY retail chains compete over market share with extensive marketing campaigns. Advances in computer technology have made it possible to acquire and compile huge quantities of point of sale data. However, due to a lack of economic theories and statistical methods, this data cannot be effectively utilized and the effects of the campaigns are not measured in any detail. In this study a new method was used to examine the effects of marketing campaigns in the DIY consumer market.
Utvärdering av prototypen för ett kollaboratorium inom biblioteks- och informationsvetenskap
This study is a formative evaluation of a prototypecollaboratory for sharing data collection instruments inlibrary and information science (LIS). The aims were to findout: how the study participants, five hospital librarians,experienced the interaction with the prototype while workingwith predetermined tasks; and their views on the differentfunctions of the prototype collaboratory.Methods used for data collection was as a survey; followedby a think-aloud session where the participant verbalisedhis/her thoughts during the interaction with the prototype;and finally a semistructured interview. The survey wasanalysed with a frequency distribution, while the data fromthe other methods were analysed qualitatively by extractingthemes from the transcribed sessions.The results show that although the librarians expresseddifferent problems while working with the interface, mainlyrelated to the language in the prototype collaboratory anddifficulties with the page for applying metadata, all of themwere confident in being able to learn the system after using itfor a while. The librarians had a positive attitude towardssharing data collection instruments as well as comments inthe prototype collaboratory. At the same time, they wereaware that students and researchers might have differentabilities or incentives to work and share information.
Diskussioner inommatematikämnet : Kreativa och Imitativa diskussioneroch när de används i undervisningen
The purpose of this essay is to examine when teachers choose to discuss mathematics withstudents rather then just talk about mathematics. A definition where used to distinguish betweenan interaction that is not a discussion and an interaction that is a discussion. This definition hasbeen created by drawing ideas from other works into making a quite simple definition whichtherefore is easy to observe. The discussions are also separated into two different kinds ofdiscussions. The first and most common category of discussion are one where only imitativereasoning is used.
Livscykelbaserad miljövärdering av en ny kontorsbyggnad : En jämförande studie mellan två analysmetoder
This Master?s Thesis aims to illustrate in what ways the two Swedish environmental assessment tools, the Environmental Load Profile and EcoEffect differ and if performed valuations gives different results and environmental goals.The built urban environment causes about half the environmental loading in Sweden. The society?s ambition towards sustainable development has resulted in demands reducing the environmental load. One way to accomplish this change is with the assistance of tools for environmental assessment of the built environment.
Data och metodik för utbytesberäkning - en studie på Medelpads Skogsförvaltning
To manage the industry?s need of wood assortments in a optimal and cost effective way the forest companies need to have knowledge of the actual standing volume and the yield of the planned clear cuts. The mean volume of the trunk is also important since it is important for the contractors prices. Today the total volume are estimated either with Näslund (1940) or Brandels (1990) functions of volumes, and the yield is estimated with Rune Ollas (1980) function for trunks and stands. The purpose of this study has been to answer the following questions: How good is the yield forecast with data collected with currently used methods? How well can the yield forecasts became with data collected according to the instructions? How well can the yield forecast be with data collected according to the instruction and calculated with the program Aptan for theoretical bucking? The study has been initiated and financed by SCA Skog AB.The material consisted of a number of randomly selected objects ready for clear cut.